/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.linkis.cs.client.listener;

import org.apache.linkis.common.listener.Event;

/** Description: Manager的作用是为了方便用户将的 */
public class ContextClientListenerManager {

    private static ContextClientListenerBus<ContextClientListener, Event> contextClientListenerBus;

    public static ContextClientListenerBus<ContextClientListener, Event>
            getContextClientListenerBus() {
        if (contextClientListenerBus == null) {
            synchronized (ContextClientListenerManager.class) {
                if (contextClientListenerBus == null) {
                    contextClientListenerBus =
                            new ContextClientListenerBus<ContextClientListener, Event>();
                }
            }
        }
        return contextClientListenerBus;
    }
}
